Objective: To investigate atrophy and weakness of the quadriceps femoris muscle group in patients with PFPS using measures of cross-sectional area and peak extension torque. Methods: A total of 57 ...

Results: Quadriceps muscle strength, meniscus injury and the Short-Form-36 Bodily Pain sub score were identified as significant predictors for knee function assessed from the Cincinnati Knee Score two ...

In patients with knee osteoarthritis (OA), pain and dysfunction cause a reflex inhibition on the quadriceps femoral muscle, and quadriceps weakness could accelerate damage to knee cartilage.